我們需要從模組 `app.dependencies`（檔案 `app/dependencies.py`）取得相依性函式。

因此我們用 `..` 做相對匯入相依性：

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### 相對匯入如何運作 { #how-relative-imports-work }

/// tip | 提示

如果你對匯入的運作方式十分了解，可以直接跳到下一節。

///

單一的點號 `.`，如下：

```Python
from .dependencies import get_token_header
```

代表：

```
### Beispiel { #example }
```

### Links

Use the following rules for links (apply both to Markdown-style links ([text](url)) and to HTML-style <a href="url">text</a> tags):

- For relative URLs, only translate the link text. Do not translate the URL or its parts.

Example:

Source (English):

```
[One of the fastest Python frameworks available](#performance)
```

Result (German):

                used_package_dirs.add(package_root)
    removed = 0
    for py_file in sorted(docs_src_path.rglob("*.py")):
        if py_file.name == "__init__.py":
            continue
        # Build the relative path as it appears in includes (e.g. docs_src/first_steps/tutorial001.py)
        rel_path = str(py_file)
        if rel_path in all_docs_content:
            continue

import java.util.Set;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests relating to cache expiration: make sure entries expire at the right times, make sure
 * expired entries don't show up, etc.
 *
 * @author mike nonemacher
 */
@SuppressWarnings("deprecation") // tests of deprecated method

				} else if ev.Type().Elem().AssignableTo(elemType) {
					fieldValue = reflect.Append(fieldValue, ev.Elem())
				} else {
					association.Error = fmt.Errorf("unsupported data type: %v for relation %s", ev.Type(), association.Relationship.Name)
				}

				if elemType.Kind() == reflect.Struct {
					assignBacks = append(assignBacks, assignBack{Source: source, Dest: ev, Index: fieldValue.Len()})
				}
			}

                 * StandardTable supports. Thus, requireNonNull is safe as long as the cell is still
                 * present. (And if it's not present, behavior is undefined.) However, that's a
                 * behavior change relative to the old code, so it didn't seem worth risking.)
                 */
                return uncheckedCastNullableTToT(
                    entry.getValue().put(columnKey, checkNotNull(value)));
              }

Vous feriez probablement cela une seule fois, la première fois, lors de la mise en place de l'ensemble.

/// tip | Astuce

Cette partie relative au nom de domaine intervient bien avant HTTPS, mais comme tout dépend du domaine et de l'adresse IP, il vaut la peine de la mentionner ici.

///

### DNS { #dns }

Тож ми використовуємо відносний імпорт з `..` для залежностей:

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### Як працюють відносні імпорти { #how-relative-imports-work }

/// tip | Порада

Якщо ви досконало знаєте, як працюють імпорти, перейдіть до наступного розділу нижче.

///

Одна крапка `.`, як у:

```Python

         */
        public LsarTranslatedSid() {
            // Default constructor
        }

        /** SID type. */
        public int sid_type;
        /** Relative identifier. */
        public int rid;
        /** Index of the SID in the domain list. */
        public int sid_index;

        @Override
        public void encode(final NdrBuffer _dst) throws NdrException {

   * href="https://docs.oracle.com/en/java/javase/25/docs/specs/jar/jar.html#main-attributes">JAR
   * File Specification</a>. Even though the specification only talks about relative urls, absolute
   * urls are actually supported too (for example, in Maven surefire plugin).
   */
  @VisibleForTesting
  static URL getClassPathEntry(File jarFile, String path) throws MalformedURLException {